文献类型：期刊文献

中文题名：载钒量对蜂窝状V_2O_5/ACH催化剂同时脱硫脱硝活性的影响

英文题名：Effect of V_2O_5 Loading on Simultaneous SO_2 and NO Removal Activities over an Activated Carbon Honeycomb Supported V_2O_5 Catalysts

作者：王艳莉[1];詹亮[1];凌立成[1];刘振宇[2]

机构：[1]华东理工大学化学工程联合国家重点实验室联合化学反应工程研究所,上海200237;[2]中国科学院山西煤炭化学研究所煤转化国家重点实验室,太原030001

年份：2006

卷号：32

期号：5

起止页码：497

中文期刊名：华东理工大学学报（自然科学版）

外文期刊名：Journal of East China University of Science and Technology

收录：CSTPCD;;EI(收录号：2006259949812);Scopus;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

基金：国家自然科学基金(20276078;90210034)

语种：中文

中文关键词：蜂窝状V2O5/ACH;V2O5担载量;脱硫脱硝

外文关键词：honeycomb V2O5/ACH; V2O5 loading; simultaneous SO2 and NO removal

摘要：蜂窝状活性炭（ACH）经850°C水蒸气活化、用等体积的偏钒酸铵和草酸的混合溶液浸渍,经干燥、煅烧和预氧化后制得新型V2O5/ACH催化剂.考察了V2O5担载量对蜂窝状V2O5/ACH同时脱硫脱硝反应活性的影响,并采用BET、FT-IR和TPD等手段表征了不同V2O5担载量时V2O5/ACH催化剂的物理化学特性.结果表明：V2O5担载量（质量百分数）为1%～5%时,随担载量的增加,新鲜催化剂的脱硫活性增加,脱硝活性降低.NH3气氛再生提高了较低担载量（1%～3%）时催化剂的脱硫活性,降低了较高担载量（5%）的脱硫活性.但NH3再生显著提高了催化剂的脱硝活性,且随V2O5担载量的降低这种促进作用愈加显著.为获得理想的同时脱硫脱硝活性,催化剂的适宜V2O5担载量为1%～3%.
V2O5/ACH catalysts were prepared by pore volume impregnation of pretreated activated carbon honeycombs through steam activation at 850 ℃ using an aqueous solution of ammonium metavanadate （NH4VO3） in oxalic acid. The effect of V2O5 loading over ACH on simultaneous SO2 and NO removal was investigated. The properties of the V2O5/ACH catalyst with different V2O5 loading were characterized by BET （Brunner-Emmett-Teller）, FT-IR （Fourien transform infrared spectroscopy） and TPD（temperature programmed desorption）. Results indicate that, with increasing V2O5 loading in the range of 1%-5%, the SO2 removal activity increases and NO conversion decreases over the fresh V2O5/ACH catalyst. The regeneration in NH3 increases the SO2 removal activity of the catalysts with V2O5 loading of lower than 3% but decreases the SO2 removal activity of the catalyst with V2O5 loading of 5%. But regeneration of the used catalyst in NH3 significantly improves the NO removal activity, especially at lower V2O5 loading. A catalyst with V2O5 loading of 1%-3% was found to be optimal for simultaneous SO2 and NO removal.